Morphology and growth of carbon nanotubes catalytically synthesised by premixed hydrocarbon-rich flames

Chong, Cheng Tung; Tan, Win Hon; Lee, Siew Ling; Chong, William Woei Fong; Lam, Su Shiung; Valera‐Medina, Agustin

doi:10.1016/j.matchemphys.2017.05.036

Cited by 28 publications

(14 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Based on the vapor-liquid-solid mechanism, the carbon radical species produced during decomposition of propane were absorbed on the surface of the nickel catalysts, followed by bulk diffusion of carbon atom into the metal catalysts. When liquid metastable carbide reached supersaturated stage, solid carbon precipitated to form carbon nanotubes [37]. The measured temperature on the substrate during the flame synthesis of carbon nanotubes was within the range of 1142 to 1287 K, which is favorable for carbon deposition due to gas-solid interactions.…”

Section: Flame As a Synthesis Mediummentioning

confidence: 95%

“…Flame synthesis is a continuous-flow, readily scale-able method with the potential for considerably lower cost production of carbon nanotubes or carbon nanofibers than is available from other synthesis methods. A newly reported synthesis method with greater scalable potential, specifically combustion or flame synthesis, has recently emerged and is gaining significant momentum [35][36][37][38][39][40]. This synthesis method is a continuous process resulting in lower cost and possesses the potential for high volume production of carbon nanotubes or carbon nanofibers.…”

Section: Flame As a Synthesis Mediummentioning

confidence: 99%

“…Recently, flame synthesis of carbon nanotubes was performed by Chong et al [37] using a laminar premixed flame combustor at open atmospheric condition. The gas-phase growth of carbon nanotubes on the substrate was supported catalytically by a transition metal under high temperature, hydrocarbon-rich environment.…”

Section: Flame As a Synthesis Mediummentioning

confidence: 99%

“…Figure 4 (c) shows the micrograph of amorphous carbon in the samples. Amorphous carbon encapsulated the nickel particles, resulting in catalyst deactivation, and subsequently prohibited the formation of carbon nanotubes [37]. On the other hand, before the discovery of carbon nanotubes, for the better part of the twentieth century carbon nanofibers, then often referred to as carbon filaments or filamentous carbon, were often considered a nuisance [9,10,20].…”

Section: Flame As a Synthesis Mediummentioning

confidence: 99%

See 3 more Smart Citations

Recent Advances in the Flame Synthesis of Carbon Nanotubes

Chen¹

2017

AJMSP

View full text Add to dashboard Cite

Significant progress has been made not only in improving the yields of carbon nanotubes, but also in gaining a profound fundamental understanding of the growth processes. Flames are emerging as a powerful tool for the synthesis of carbon nanotubes and carbon nanofibers. The flame volume provides a carbon-rich chemically reactive environment capable of generating nanostructures during short residence times in a continuous single-step process. The present work provides a concise review of the advances made over the past two decades in the areas of flame synthesis of carbon nanotubes and carbon nanofibers. An overview of existing flame methods to synthesize carbon nanotubes is first provided. Various catalytic materials, fuel types, and flame configurations have been employed in an attempt to achieve controlled synthesis of carbon nanotubes and carbon nanofibers. Diffusion and premixed flames in counter-flow and co-flow geometries are also discussed. Various hydrocarbon fuels, oxygen enrichment, and dilution with inert gases are then examined in detail. The ability to synthesize and control carbon nanotubes and carbon nanofibers is essential for the fabrication of nanomechanical and electrical devices. A fundamental understanding of the growth mechanism and development of control methods is critically important to address these issues. The purpose of the present review is to clarify the growth mechanisms and achieve controlled flame synthesis of carbon nanotubes and carbon nanofibers.

show abstract

Section: Flame As a Synthesis Mediummentioning

confidence: 95%

Section: Flame As a Synthesis Mediummentioning

confidence: 99%

Section: Flame As a Synthesis Mediummentioning

confidence: 99%

Section: Flame As a Synthesis Mediummentioning

confidence: 99%

See 2 more Smart Citations

Recent Advances in the Flame Synthesis of Carbon Nanotubes

Chen¹

2017

AJMSP

View full text Add to dashboard Cite

show abstract

“…[29,30] : [31] . 在1589 cm −1 处的峰是由于碳有序结构的G模式 [32,33] . 此外, 对应于无序碳结构和石墨碳结构的峰强度比值I D /I G 可用来评估样品表面结构的相对缺陷度(无序化程度) [33] .…”

Section: 在材料表面引入氨基官能团非常有利于U(vi)的unclassified

Adsorption of U(VI) on nonthermal plasma-modified carbon nanotubes

Sun¹,

Wang²,

Duan³

et al. 2018

Sci. Sin.-Chim

View full text Add to dashboard Cite

show abstract

Hollow Au‐ZnO/CN Nanocages Derived from ZIF‐8 for Efficient Visible‐Light‐Driven Hydrogen Evolution from Formaldehyde Alkaline Solution

Yang

Zhang

et al. 2019

Eur J Inorg Chem

View full text Add to dashboard Cite

Hollow carbon nanostructured materials incorporating metals or metal oxides have attracted considerable interest in photocatalysis. Herein, novel hollow N-doped carbon nanocages incorporating Au and ZnO nanoparticles derived from ZIF-8 were successfully synthesized. Firstly, ZIF-8 nanocrystals were treated with chloroauric acid solution (HAuCl 4 ) to produce hollow Au X @ZIF-8 cubes through acid etching of cores and cation exchange. Then, the Au X @ZIF-8 cubes were used as precursors to obtain Au X -ZnO/CN after pyrolysis in a N 2 atmosphere. The resulting Au 0.40 -ZnO/CN had a uniform hollow structure with ≈ 30 nm shells conformal to ZIF-8 dimension while incor- [a]

show abstract

Morphology and growth of carbon nanotubes catalytically synthesised by premixed hydrocarbon-rich flames

Cited by 28 publications

References 50 publications

Recent Advances in the Flame Synthesis of Carbon Nanotubes

Recent Advances in the Flame Synthesis of Carbon Nanotubes

Adsorption of U(VI) on nonthermal plasma-modified carbon nanotubes

Hollow Au‐ZnO/CN Nanocages Derived from ZIF‐8 for Efficient Visible‐Light‐Driven Hydrogen Evolution from Formaldehyde Alkaline Solution

Contact Info

Product

Resources

About